دارای هفت جدول به شرح زیر: 1) Airport : id, name, city id, latitude, longitude 2) City : city id, name, province id 3) Province : id, name, country id 4) Country : id, name 5) Airline : id, name 6) Flight : id, date, source airport id, dest airport id, time, airline id, flight number, latest price, latest capacity 7) Price-capacity : flight id, date & time of latest capacity and price, price, capacity. ...